Former Secretary of State Hillary Clinton called 2018 a "dark time for our country" and commended "everyone who, marched, donated, called, and protested to fight for the values we share."

"I'm grateful to everyone who brought light into it: activists who protected kids at the border, journalists who stood up for truth, organizers who mobilized voters for the 2018 elections, candidates who ran races with grit and inspiration, voters who made their voices heard, and absolutely everyone who marched, donated, called, and protested to fight for the values we share," she wrote in a Monday Instagram post with a photo of herself, husband Bill Clinton, and their daughter, Chelsea.

"Here's to more light in 2019, and to a shared commitment to make it as bright as possible," the 2016 Democratic presidential nominee added. "Happy New Year."

Clinton publicly sparred with President Donald Trump in 2018 on a number of hot-button issues, including immigration, trade, Middle East relations, and North Korea.